
Connector Pin Assignment
Hardware Manual • Doc.-No.: C.2930.21 / Rev. 1.5
DN-DP
Page 16 of 21
4.2 PROFIBUS-DP Interface (X1000, 9-pin DSUB, female)
Pin position
Pin assignment:
Signal
Pin
Signal
-
1
6
P5V
(output)
-
2
7
-
RxD/TxD-P
(input/output)
3
8
RxD/TxD-N (input/output)
CNTR-P
(output)
4
9
-
DGND
5
9 pin DSUB
Signal description:
RxD/TxD-P ...
receive/transmit data- Plus, B-Line
RxD/TxD-N...
receive/transmit data- N, A-Line
CNTR-P ...
control signal for repeater (‘Request To Send’)
P5V ...
supply voltage for external bus termiantion networks
(+5 V, max. 50 mA)
DGND ...
reference potential
- ...
not connected